May 1 update:Starting on May 1, summer Time-of-Use (TOU) hours and Tier thresholds will be in effect. Customers on the Ultra-Low Overnight price plan will not be affected, and electricity rates will remain unchanged.Starting on May 1, summer Time-of-Use (TOU) hours and Tier thresholds will be in effect. Customers on the Ultra-Low Overnight price plan will not be affected, and electricity rates will remain unchanged.